21d6b9dc9961_add_mismatch_scheme_state_to_requests.py 文件源码

def upgrade():
    '''
    upgrade method
    '''
    if context.get_context().dialect.name not in ('sqlite', 'mysql'):
        drop_constraint('REQUESTS_STATE_CHK', 'requests', type_='check')
        create_check_constraint(name='REQUESTS_STATE_CHK', source='requests', condition="state in ('Q', 'G', 'S', 'D', 'F', 'L', 'N', 'O', 'A', 'U', 'W', 'M')")